Ok, i have a little time now… we are using a slightly modified AO (Candian History) I can also talk more about the Year 1 than I can for your older child because of the age of my kids.
For the early years with AO, you do a reading (breaking it into whatever size works for your child), then have them orally narrate it. You can have them do other narration methods, like drawing a picture or acting it out too. Written narrations aren’t done until the child is ready – I think around age 10 is when they recommend starting to add a bit of written narrations. For an older child just starting, they don’t recommend doing written narrations for a year or so of doing oral narrations… so for your older it depends if they have done oral narrations or not prior to this.
What year were you thinking of putting your 12 year old in? I wouldn’t recommend Year 7! AO recommends starting Year 1 at age 7, and Year 7 is a leap up in difficulty! I’d look at somewhere around Year 4-6, or the Pre-Year 7, depending on their abilities.
There is more to AO than just the booklists… there are the composer/music study, art/picture study, nature study, etc.
I can’t speak for the higher years – but I do think that Year 1 is certainly doable…. that said, I did end up breaking the Year 1 over 2 years because I started my son when he was 6 and he wasn’t ready… so I dropped some things out last year…. (that and I was sick with a difficult pregnancy, and then of course had a newborn…) I really just came to realize that he wasn’t ready last year a bit into this year. We are doing Year 1 again, doing the things we missed, and adding in a bit more to replace the things we already did. Most Year 1 mom’s say they take between 1 to 2 hours a day for school, and that is in line with the time we take.
Here is an idea of what we are doing…. Note that we only read from a book that week if AO has a reading scheduled!
Mondays we do the basics – Math, Copywork, Reading Practice, possibly 2nd language. We also have violin lessons and swim lessons outside the house.
Tuesdays we do the basics, plus scheduled readings (if there are any) from Our Island Story, 1/2 of the Burgess Bird Book reading, 1/2 Parables from Nature, 1/3-1/2 Blue Fairy Book, current literature book
Wednesday we do the basics, plus Viking Tales, Canadian History, 1/3 Blue Fairy Book (if doing 3rds), current literature book
Thursdays we do the basics, plus 1/2 Burgess Bird Book, 1/2 Parables from Nature,, 1/3-1/2 Blue Fairy Book, current literature book
Fridays we do math and then 1) whatever we didn’t finish, OR 2) Wild Day! Nature study, swimming at the Y, going to the Zoo, or museum, or whatever.
Saturdays we do anything we didn’t finish, scouting, nature study, or whatever life suggests to us!
Oh, and the weeks with Shakespeare, we work on it each day. We read the Free-Reads before bedtime. You can kind of see what we finished from our first go at Year 1… and I didn’t mention what I’ve added in…
hope that helps some!